So how do you define a great Secretary of State, byy the number of wars they can start? Well then Powell would be considered great. How about the number of children they can kill in other countries and then consider it worth it? Well then Madame Secretary Albright would be considered great? Well there is always the escalation of a civil war into a regional conflagration. If that is the measure than both Rusk and McNamara are candidates for greatness. So what are the requirements?